// Copyright (C) 2024 Kumo inc.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//

#include <chrono>
#include <iostream>
#include <thread>

#include <deneb/lru.h>

using namespace std::chrono_literals;

int f(int x) {
  std::this_thread::sleep_for(1s);
  return x;
}

auto main() -> int {
  // Use a time-to-live of 2 minutes and a
  // capacity of 128 for an LRU::TimedCache
  auto wrapped = deneb::timed_wrap(f, 2min, 128);

  std::cout << "Slow the first time ..." << '\n';
  wrapped(42);

  std::cout << "Fast the second time!" << '\n';
  wrapped(42);
}
